Math Worksheets

Length and Height Worksheets

A measurement-unit conversion lesson and worksheet. Students convert between inches, feet, yards, and miles using a real-world example – the height of the Empire State Building – and apply the rules to a set of practice problems with answer keys. Grades 3-5.

What This Lesson Teaches

Students learn to convert between the four U.S. customary length units – inches, feet, yards, and miles. The lesson opens with a real-world question of the day: how tall is the Empire State Building (1,453 feet 8 9/16 inches) when measured in inches? Students pick from three answer choices, then read the lesson to see if they were right.

Two simple rules drive the lesson: multiply when converting from a larger unit to a smaller unit (feet to inches), and divide when converting from a smaller unit to a larger unit (inches to feet). The lesson includes a unit-conversion table that students reference for every problem.

What Students Practice

• Reading a unit-conversion table – 1 mile = 1,760 yards = 5,280 feet; 1 yard = 3 feet; 1 foot = 12 inches
• Multiply-or-divide decision – choosing the right operation based on whether the target unit is bigger or smaller
• Multi-step conversions – converting feet directly to inches, miles directly to feet
• Real-world application – the Empire State Building example anchors the math in a tangible scale
• Number-problem practice – including 2 feet, 6 yards, 10,560 feet conversions
• Self-checking with the answer key

How Teachers Use This Worksheet

This is a strong introductory measurement lesson. It works as a stand-alone Day 1 lesson on length conversion or as a warm-up before a measurement project (room dimensions, mapping the playground).

• Open with the question of the day; let students guess before reading – the engagement carries the lesson
• Use the conversion table as an anchor chart on the wall for the full unit
• Hands-on extension – students measure their desk, classroom, or hallway with a ruler/yardstick and convert between units
• Pair with a money or weight unit later for a broader U.S. customary measurement block
• Use the answer key for student self-check or peer review
• Cycle the practice problems back as warm-ups in the days following the lesson

Common Student Mistakes to Watch For

• Multiplying when they should divide – reinforce: bigger unit -> smaller unit means more of them, so multiply
• Mixing up the conversion factor – especially 12 (inches per foot) vs. 36 (inches per yard) vs. 3 (feet per yard)
• Forgetting that 1 mile = 5,280 feet – the awkward number trips students up; have them memorize it
• Skipping unit labels in the answer – require students to write “60 inches”, not just “60”
• Combining mixed units incorrectly – a height like 1,453 ft 8 9/16 in needs each part converted separately, then added

Download the Worksheet

Full Members can download the printable PDF worksheet and answer key.

Related Resources

• Length and Height Lesson – the full lesson page
• Calculating Measurements – companion measurement lesson
• Geometry Worksheets – applies measurement to geometric figures
• Math worksheets hub

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